CN1036917C - 不饱和羧酸酯反应产物的回收 - Google Patents

不饱和羧酸酯反应产物的回收 Download PDF

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Publication number
CN1036917C
CN1036917C CN93105781A CN93105781A CN1036917C CN 1036917 C CN1036917 C CN 1036917C CN 93105781 A CN93105781 A CN 93105781A CN 93105781 A CN93105781 A CN 93105781A CN 1036917 C CN1036917 C CN 1036917C
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CN
China
Prior art keywords
azeotrope
reaction
stream
alcohol
volatility
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN93105781A
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English (en)
Chinese (zh)
Other versions
CN1079956A (zh
Inventor
D·C·凡·德·比克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British media Co., Ltd.
Original Assignee
Shell Internationale Research Maatschappij BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of CN1079956A publication Critical patent/CN1079956A/zh
Application granted granted Critical
Publication of CN1036917C publication Critical patent/CN1036917C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CN93105781A 1992-05-20 1993-05-18 不饱和羧酸酯反应产物的回收 Expired - Fee Related CN1036917C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92201452.7 1992-05-20
EP92201452 1992-05-20

Publications (2)

Publication Number Publication Date
CN1079956A CN1079956A (zh) 1993-12-29
CN1036917C true CN1036917C (zh) 1998-01-07

Family

ID=8210619

Family Applications (1)

Application Number Title Priority Date Filing Date
CN93105781A Expired - Fee Related CN1036917C (zh) 1992-05-20 1993-05-18 不饱和羧酸酯反应产物的回收

Country Status (6)

Country Link
JP (1) JPH0632762A (de)
KR (1) KR930023324A (de)
CN (1) CN1036917C (de)
CA (1) CA2096478A1 (de)
DE (1) DE69309535T2 (de)
SG (1) SG48903A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070254A (en) * 1975-06-10 1978-01-24 Nippon Zeon Co., Ltd. Process for preparing a purified methacrylic acid ester
US4518462A (en) * 1980-06-20 1985-05-21 Asahi Kasei Kogyo Kabushiki Kaisha Distillation process for purifying methyl methacrylate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070254A (en) * 1975-06-10 1978-01-24 Nippon Zeon Co., Ltd. Process for preparing a purified methacrylic acid ester
US4518462A (en) * 1980-06-20 1985-05-21 Asahi Kasei Kogyo Kabushiki Kaisha Distillation process for purifying methyl methacrylate

Also Published As

Publication number Publication date
JPH0632762A (ja) 1994-02-08
DE69309535D1 (de) 1997-05-15
SG48903A1 (en) 1998-05-18
DE69309535T2 (de) 1997-07-24
CA2096478A1 (en) 1993-11-21
KR930023324A (ko) 1993-12-18
CN1079956A (zh) 1993-12-29

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. TO: IMPERIAL CHEMICAL CORPORATION

CP03 "change of name, title or address"

Address after: London, England

Applicant after: Imperial Chemical Industries PLC

Address before: Holland Hague

Applicant before: Shell Internationale Research Maatschappij B. V.

C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: PATENTEE; FROM: IMPERIAL CHEMICAL CORPORATION TO: ENOS- ERILICS UK CO., LTD.

CP03 "change of name, title or address"

Address after: England Hampshire

Patentee after: British media Co., Ltd.

Address before: London, England

Patentee before: Imperial Chemical Industries PLC

C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee